Hybrid module for a drive train of a vehicle

Abstract

A hybrid module for a drive train of a vehicle, including a first disconnect clutch ( 2 ), an electric motor ( 4 ), and a second disconnect clutch ( 1 ). The first disconnect clutch ( 2 ) is disposed in the torque flow path between a combustion engine ( 3 ) in the drive train and the electric motor ( 4 ), while the second disconnect clutch ( 1 ) is disposed in the torque flow path between the electric motor ( 4 ) and a transmission ( 6, 7 ) in the drive train. The first disconnect clutch ( 2 ) and the second disconnect clutch ( 1 ) are disposed in a joint wet chamber.

The invention claimed is: 
     
       1. A hybrid module for a drive train of a vehicle, comprising a first disconnect clutch, an electric motor, and a second disconnect clutch, the first disconnect clutch is arranged in a torque flow path between a combustion engine in a drive train and the electric motor, and the second disconnect clutch is arranged in the torque flow path between the electric motor and a gear-shifting transmission in the drive train, wherein the first disconnect clutch and the second disconnect clutch are arranged in a joint wet chamber, wherein the second disconnect clutch is a double clutch with first and second sub-clutches arranged in the torque flow path between the electric motor and the gear-shifting transmission in the drive train, the first and second sub-clutches are connectable to first and second transmission input shafts, respectively, wherein the first disconnect clutch and the double clutch are arranged in the joint wet chamber, wherein an output side of the first disconnect clutch is connected to a rotor of the electric motor and the rotor of the electric motor is connected to an input side of the second disconnect clutch, the joint wet chamber is defined by a clutch housing of the second disconnect clutch, a rotor carrier of the electric motor, and an output plate carrier of the first disconnect clutch, and the output plate carrier of the first disconnect clutch and the rotor carrier of the electric motor is supported by a joint, motor-side bearing on a cover that is supported on a transmission housing, and the transmission housing is supported by a transmission-side bearing on a transmission side. 
     
     
       2. The hybrid module according to  claim 1 , wherein the joint wet chamber of the clutches is closed by a cover that is arranged between a rotor of the electric motor and an output plate carrier of the first disconnect clutch and is supported on a transmission housing. 
     
     
       3. The hybrid module according to  claim 2 , wherein the rotor of the electric motor is connected to an output side of the first disconnect clutch and the output side of the first disconnect clutch is connected to an input side of the second disconnect clutch. 
     
     
       4. The hybrid module according to  claim 2 , wherein a stator of the electric motor is mounted on the cover. 
     
     
       5. The hybrid module according to  claim 2 , wherein an assembly module is formed from the first disconnect clutch, the electric motor, and the second disconnect clutch, wherein the assembly module is connectable to the transmission before the transmission is connected in the drive train to the combustion engine. 
     
     
       6. The hybrid module according to  claim 1 , wherein the rotor carrier of the electric motor is connected rigidly to the clutch housing of the second disconnect clutch and the output plate carrier of the first disconnect clutch. 
     
     
       7. The hybrid module according to  claim 1 , wherein at least one of a bow spring damper is arranged in the joint wet chamber or a centrifugal force pendulum is arranged in the joint wet chamber for vibration isolation in the drive train between the combustion engine and the transmission. 
     
     
       8. The hybrid module according to  claim 1 , wherein an activation system for the double clutch is provided including a piston/cylinder unit and a force-transfer element for each of the sub-clutches of the double clutch with force transmission with or without a lever effect between piston/cylinder units and friction plates of the sub-clutches. 
     
     
       9. A hybrid module for a drive train of a vehicle, comprising a first disconnect clutch, an electric motor, and a second disconnect clutch, the first disconnect clutch is arranged in a torque flow path between a combustion engine in a drive train and the electric motor, and the second disconnect clutch is arranged in the torque flow path between the electric motor and a gear-shifting transmission in the drive train, wherein the first disconnect clutch and the second disconnect clutch are arranged in a joint wet chamber, wherein the second disconnect clutch is a double clutch with first and second sub-clutches arranged in the torque flow path between the electric motor and the gear-shifting transmission in the drive train, the first and second sub-clutches are connectable to first and second transmission input shafts, respectively, wherein the first disconnect clutch and the double clutch are arranged in the joint wet chamber, wherein an output side of the first disconnect clutch is connected to a rotor of the electric motor and the rotor of the electric motor is connected to an input side of the second disconnect clutch, the joint wet chamber is defined by a clutch housing of the second disconnect clutch, a rotor carrier of the electric motor, and an output plate carrier of the first disconnect clutch, the rotor carrier of the electric motor is connected rigidly to the clutch housing of the second disconnect clutch and the output plate carrier of the first disconnect clutch, wherein a static sealing element is arranged at least one of between the rotor carrier of the electric motor and the clutch housing of the second disconnect clutch or between the rotor carrier and the output plate carrier of the first disconnect clutch. 
     
     
       10. A hybrid module for a drive train of a vehicle, comprising a first disconnect clutch, an electric motor, and a second disconnect clutch, the first disconnect clutch is arranged in a torque flow path between a combustion engine in a drive train and the electric motor, and the second disconnect clutch is arranged in the torque flow path between the electric motor and a gear-shifting transmission in the drive train, wherein the first disconnect clutch and the second disconnect clutch are arranged in a joint wet chamber, wherein the second disconnect clutch is a double clutch with first and second sub-clutches arranged in the torque flow path between the electric motor and the gear-shifting transmission in the drive train, the first and second sub-clutches are connectable to first and second transmission input shafts, respectively, wherein the first disconnect clutch and the double clutch are arranged in the joint wet chamber, wherein an output side of the first disconnect clutch is connected to a rotor of the electric motor and the rotor of the electric motor is connected to an input side of the second disconnect clutch, wherein the joint wet chamber is defined by a clutch housing of the second disconnect clutch, a rotor carrier of the electric motor, and an output plate carrier of the first disconnect clutch, wherein a radial shaft sealing ring is arranged between a clutch hub of the first disconnect clutch and the output plate carrier of the first disconnect clutch and seals the joint wet chamber.